Just want to make sure I’m doing this right, I’m sure they’re a few of you who can help…
Simplify:
20b^10
10b^20 My answer: 2
____
b^10
(i used ^ to show to the power of)
I know this is simple but I just want to make sure I’m doing it right…funny that i’m asking math questions on NYSPEED,but there is a lot of smart people on here
are you serious?
I don’t understand the use of underline, are you trying to write:
(20b^10)/(10b^20) ?
Is “b” an unkown variable? Or is it some mathmatical expression?
i’m sure 30% of the people on here have went through college math within 2 years ago so it should be fresh in their heads, better than spending a half hour looking for answers somewhere else
yeah, I guess I shoulda wrote that ^ b is just a variable.
I get:
(20b^10)/(10b^20) =
((1.024 x 10^13)(b^10))/((10 x 10^19)(b^20)) =
(1.02400 x 10-7)*(b^-10)
But I don’t have a calculator and just using the desktop.
Works out when replacing “b” with 5 in both the original equation and the solution. Checked with “b” = 3 as well.
yes the answer is 2
my answer would come from dividing 20 by 10…giving me 2.
and then subtracting 20 from 10 which would give me b^-10 but the answer has to have a positive exponent so I would do the inverse which would equal
2/b^10
Nah, but it’s review and I’ve been away from math for like 3 years
wait, are you doing 20b^10 as in (20b)^10 or 20*(b^10)?
http://www.algebralab.org/lessons/lesson.aspx?file=Algebra_ExponentsRules.xml
Well, that is a negative exponent.
But your answer is correct.
I don’t know what race car driver dude is doing.
Thanks, Yeah I think he was reading way to far into it. Just had to simplify the problem, but thanks RedGoober!